Assignment Directions Safety There are no safety considerations as the data shall be taken from an actual experiment performed on video. Materials The experiment will take place using 8 tuning forks, a rubber mallet, a glass tube, a large graduated cylinder or other container filled with water, and a meter stick. Procedure Steps 1-3 will be completed on the video. You will determine the length of the tube in step four by watching the video and reading the meter stick. The glass tube shall be held upright in water with most of the tube submerged. A tuning fork with a frequency of 512 Hz will be struck with a mallet so it vibrates properly. While holding the tuning fork vertically just over the open end of the glass tube, the tube should be raised until the resonating sound of the tuning fork can be heard throughout the room. While the resonating sound is present, the length of the glass tube from the water level to the top should be measured with a meter stick to the nearest millimeter. The data should be recorded on the data table. The frequency comes from the tuning fork. The wavelength is 4 times the length of the tube above the water. Make sure you record the wavelength in meters. (See the introduction if you are not sure why you are multiplying the length of the tube by 4.) Repeat the experiment with 7 more tuning forks at their given frequencies.